sargar53641 sargar53641

04-11-2021
Mathematics

contestada

Solve the system by substitution.

-9y - 10 = x

5x+ 6y = -11

Respuesta :

syahbanazacki syahbanazacki

05-11-2021

Step-by-step explanation:

-9y - 10 = x

x = -9y - 10

5x + 6y = -11

5(-9y - 10) + 6y = -11

-45y - 50 + 6y = -11

(-45 + 6)y = -11 + 50

-39y = 39

y = 39/-39

y = -1

x = -9y - 10

x = -9(-1) - 10

x = 9 - 10

x = -1

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